Improvement in cotton-gins



UNITED, raras.

1S. R. PARKHURST, OF BLOOMFIELD,

new,l JERSEY, .As-stenen 'ro EMILY R. PARKHURST, 'OF SAME PLACE.

lMPROVEiVl ENT IN- COTTNGlNS.

Specification formingpart oi' Letters PatentNo. 5.1.5!6 datedjJa-nnary9,'166..

To all rwhom. it may concern.- vBe 'it known that I, STEPHEN R. PARK-HURST, of Bloomfield, in thecounty of Essex and State of N ewJ ersey,have invented,.1nade, *and applied to use acertein new and usefulimprovement in Cotton-Gina and I do hereby.

declare thel following to be a full, clear, and

exact description vof the same,reference`being' contiguous to arevolving cylinderot' teeth,

.which cylinder causes thocotton to revolve in the hopper in the form'of a roll. To this roll the seeds adhere, land fall away when there isno lint upon them to cause them to 'adhere to the roll but this ln'assof seeds'upon the outer portion ofthe roll interferes with the teeth,takingv the cotton fiber., and the gin also' has to he fed with care,ortho roll will become smaller in one part than another 'and breakup'and cease to revolve properly,

--The object of my .invention is to feed the gin from a hopper, intowhich hopper the cot ton may be turned'in a mass, so thatjthe feeding isautomatic and the bat of cotton fed `to the ginning-cylinder is deprivedof its seeds, and passes directly through the machine, while the-seedsfall from the out of the way. A

.In the drawings, a is the .ginning-cylinder, formed in any desiredmanner. I have shown it asmade with teeth undercut in steel rings. Thiscylinder is revolved by competent power, andis sustained in themainframeb ofthe machine...

.The seeds are kept back and separated from the cotton by any known orsuitable device. I have shown a revolving stripper, c, driven by an.internal gear, d, on the shaft of the Agilining-cylinder a, acting upona pinion on 'the shaft of the stripper c, as in Letters latent grantedto me April 27, 1858.A e is a brush-blower that takes the cotton awayfrom the cylinder a and delivers it, and f en inclined board or platedown which the ginning-cylinder and i' seeds roll as they are separated.from the cotton, which plate is sniiioiently close to'cause the teethofthe cylinder to come ineontact with any bers .adhering to .the seedsand carrythem up to be acted lupon agaiinyvhile the cleaned'seeds fallaway.

For convenience ot access to the ginning@ cylinders, I mount my feedingapparatus upon 'a movable frame, g,that is attached, by screws.l

or otherwise, at 'i to the main frameA b, and. in

this. frame g,. l mount .a.cylin ler,h, rotated.

slowly by competent power. I have shown belts at k, and above-thiscyiinder-h is a stripper, l, rotated rapidly by the belt m,- or,otherwise..- To the front of the cylinder h is. a hep!y per, n, hinged.to g at the point o, for convenience of moving the hopper back,asseelrlyvv the ydotted are, in. case the cotton .becomes clogged in thehopper and does. not feed down properly,- and from near the lowervedgeofthe hopper a curved plate, p, eXtends-around,to the plate f, so that4nocotton can drop down.

among theseeds;l q is a lidabove the cyl-l. inder h, giving access, whennecessary, to the cylinder It, stripper l, and airbrush -or blower, r,driven rapidly by. the belts or otherwise. The respective cylinders,beaters, andI brushes rotate in the directions indicated. bythe ar-.rowsupon them, and the cylinder his armed' with teeth, which I preferto be open, strongA card-teeth, and as the said cylinder' .h rotates itsteeth `ill themselves with cotton from the hopper n, and the stripper lkeeps back sur plus cotton, so that only .the amount held by the teethot h, together with the seeds, go past said stripper` and are thrown bythe brush, r

oli' tho-teeth of h. upon the ginning-cylinder a.'

The speed of rotation of the cylinder h is so adjusted or determinedthat only as much cot? ton issupplied thereby as the cylinder a can ginclean and without accumulation of cotton between the ginning-cylnder aand stripper c, so that the seeds are free to fall away, and the ginninggoes on with uniformity and certainty in consequence oi my devicebecoming an automatic feed to thegin.y The momentum of the cotton, asitis thrown from 'the brush r upon the cylinder a, causes the cotton tobed itself into the teeth, and the seeds resting on the surface of saidteeth. are easily separated from the cotton. l

The case t of the blower e is hinged to the .frame b a t', so that itmay be linea, and for convenience the frame w ofV thecondensingcylinders v is made movable, and connected to [the machine bya hook at u', or otherwise.

The cylinders 'a are made of wire-gauze or perforated sheet metal orother materahand stand upon vertical shafts e', driven by mitergearingio and a beit, 'w', or other convenient mechanism. The upper heads ofthe cylinders v are made open or'with arms, and the bottom of thetrunk:v is made with similar openings, so that air containing dust, fte., maybe blown from the blower e, through the gauze of they cylinderv, away bythe trunk :v out -of doors or to any convenient point; and, to 'preventair passing through both sides ofthe cylinders e asmuch as possible, Isurround thesame with cases, as shown at as', which -pass nearly half#-way around the' cylinders from the blowertruuk to thepoint for thedelivery of the cotv ton. Y- l As the cylinders v revolve in thedirection indicated by the arrowsFig. 1, the lint dei posited upon theirforaminons surface willl be conveyedout between them, and will fallvertically away yin the form, of a sliver or roving over the conductorz, andthe small amount of air 'passing through the c'ylinderse and outat the vertical opening through which the cotton' is delivered willinsure the lint passing off th surface of the perforated cylinders c. i

The. condensing-cylinders, being upon verti# cal shaftscause anequalization. of the fiber 'by delivering it in the form of a sliver orroving, whereas in those coudeusers that deliver thefiber in a sheet or'bat the' edges 'thereof are almost always thinner than the central portion, because the giuning-eylinder is almost always fedvmore l and morelfully operative in the middle than at the ends; hencesaid hat could notbe fed to eenling-machines, whereas 'the sliver in which my ber isdelivered is adapted to immediate use in any subsequent l operations,'asit is equalized bythe l{.bers be- 'teeth to takethe cotton graduallyfrom a hop- 'pcr andconvey it to a position for'deliverylto theglnning-cylinder, substau tially as specified.

3. The combination of the following four devices: lirst, ag'inning-cylinder; second, a feed ing cylinder or surface armed withteethto take the cotton from the mass in thehopper; third, the stripperor equivalent mechanism to keep the surplus cotton in the hopper; and,fourth, a brush or cylinder to transfer the-cot- -ton from thefeeding-surface to theginningcylinder, substantially as set forth.

4. The combination ofva feeding cylinder or l'surface armed with teeth,aginning-cylinder,

and a revolving stripper to remove .the seedsv from .the cotton,substantially as. specified.

' 5. A pair of condensingLcylinders formed' of' gauze orfinely-perforated surfaces, and sus.- taned by vertical shafts,`substantially as specifled, so that the ber shall be delivered from avertical opening and pass awaylin the form of .a loose sliver or roving,as set forth.

6, The perforatedcylinders 'v non vertical shafts, in combination withthe trunks, through which the blast of airls conveyed away, as setforth.

In witnesswhereof. I have herewith set my signature this 28th day ci'August, 1865. Y S. lt. PARKHURST.

Witnesses 'LEMUEL W. SERRELL, .J SERRELL, Jr.

